linux-kernel - Re: [PATCH v2 2/2] arm64: dts: qcom: sm8250: Add Coresight support

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Message-ID: <57e2a1d8-15ec-0381-2b7d-95bbda7503ae@arm.com>
Date:   Tue, 21 Sep 2021 17:35:37 +0100
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     Tao Zhang <quic_taozha@...cinc.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:     Mike Leach <mike.leach@...aro.org>, Leo Yan <leo.yan@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Tingwei Zhang <quic_tingweiz@...cinc.com>,
        Mao Jinlong <quic_jinlmao@...cinc.com>,
        Yuanfang Zhang <quic_yuanfang@...cinc.com>
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: sm8250: Add Coresight support

Hi Tao

Are there no sinks at all on this platform ? I had this question on the
previous series. How is CoreSight useful on this platform otherwise ?

On 13/09/2021 07:40, Tao Zhang wrote:
> Add the basic coresight components found on Qualcomm SM8250 Soc. The
> basic coresight components include ETF, ETMs,STM and the related
> funnels.
> 
> Signed-off-by: Tao Zhang <quic_taozha@...cinc.com>
> ---
>   arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 442 ++++++++++++++++++++++-
>   1 file changed, 438 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> index 8ac96f8e79d4..9c8f87d80afc 100644
> --- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> @@ -222,11 +222,445 @@
>   		regulator-max-microvolt = <1800000>;
>   		regulator-always-on;
>   	};
> -};
>   
> -&adsp {
> -	status = "okay";
> -	firmware-name = "qcom/sm8250/adsp.mbn";

Unrelated change ? Please keep it separate from the CoreSight changes.

Suzuki